165847880 has 32 divisors (see below), whose sum is σ = 407082240. Its totient is φ = 60308160.

The previous prime is 165847873. The next prime is 165847883. The reversal of 165847880 is 88748561.

It is a happy number.

165847880 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (165847883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188024 + ... + 188903.

It is an arithmetic number, because the mean of its divisors is an integer number (12721320).

Almost surely, 2^165847880 is an apocalyptic number.

165847880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165847880 is an abundant number, since it is smaller than the sum of its proper divisors (241234360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

165847880 is a wasteful number, since it uses less digits than its factorization.

165847880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376949 (or 376945 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 47.

The square root of 165847880 is about 12878.1939727588. The cubic root of 165847880 is about 549.4185370059.

The spelling of 165847880 in words is "one hundred sixty-five million, eight hundred forty-seven thousand, eight hundred eighty".